Re: Web service HTTP Basic Authentication - where to start from? -- RPG400-L

Actually, I've done hundreds of back-to-back tests. The CPU time is
essentially constant in all cases. However, the latency from network
bandwidth varies quite a bit, which is expected.

My interface only authenticates once, upon Login. After that, no check.
However, for sites that are using HTTP basic authentication, that occurs
for every request.

On Tue, May 5, 2020 at 11:43 AM Jay Vaughn <jeffersonvaughn@xxxxxxxxx>
wrote:

Nathan

Please take an average of 5 back to back requests tests... let us know the
comparisons. To accommodate for any front loaded operations.

Jay

Sent from my iPhone

On May 5, 2020, at 1:21 PM, Nathan Andelin <nandelin@xxxxxxxxx> wrote:

I've been reviewing Jay's product, which includes a generic CGI program
that calls other RPG programs based on a "routing" table. By saying

table,

I'm referring to an IBM i DB table that developers may use to define

routes.

Part of my review includes performance testing of the
GET_CUSTOMER_BANK_ACCOUNT_INFO sample web service that's included with

the

product. On my server that request consumes 5 milliseconds of CPU time
within HTTP server Jobs.

I compared it to an HTTP interface that I wrote. I tested a web

application

that performs comparable database I/O and generates a comparable output
stream. Under the covers it parses HTTP input (environment variables,
query-string parameters, HTTP headers, cookies, and HTML form variables).
The result of the parsing is various structured sets of NAME-VALUE pairs
that can be retrieved by name.

That interface consumes only .6 milliseconds of CPU time. That's about an
8X performance improvement. I've been trying to account for the

performance

difference. Jay's CGI program uses YAJL under the covers for CGI I/O. His
HTTP server is also performing basic authentication on every request.

But I

didn't expect to see that big of a performance difference.

Nathan.
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